|
0
|
1 /* XEmacs case conversion functions.
|
|
373
|
2 Copyright (C) 1985, 1992, 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
|
|
0
|
3
|
|
|
4 This file is part of XEmacs.
|
|
|
5
|
|
|
6 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
7 under the terms of the GNU General Public License as published by the
|
|
|
8 Free Software Foundation; either version 2, or (at your option) any
|
|
|
9 later version.
|
|
|
10
|
|
|
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
14 for more details.
|
|
|
15
|
|
|
16 You should have received a copy of the GNU General Public License
|
|
|
17 along with XEmacs; see the file COPYING. If not, write to
|
|
|
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
19 Boston, MA 02111-1307, USA. */
|
|
|
20
|
|
373
|
21 /* Synched up with: FSF 19.34, but substantially rewritten by Martin. */
|
|
0
|
22
|
|
|
23 #include <config.h>
|
|
|
24 #include "lisp.h"
|
|
|
25
|
|
|
26 #include "buffer.h"
|
|
|
27 #include "insdel.h"
|
|
|
28 #include "syntax.h"
|
|
|
29
|
|
|
30 enum case_action {CASE_UP, CASE_DOWN, CASE_CAPITALIZE, CASE_CAPITALIZE_UP};
|
|
|
31
|
|
|
32 static Lisp_Object
|
|
183
|
33 casify_object (enum case_action flag, Lisp_Object obj, Lisp_Object buffer)
|
|
0
|
34 {
|
|
183
|
35 struct buffer *buf = decode_buffer (buffer, 0);
|
|
373
|
36
|
|
|
37 retry:
|
|
|
38
|
|
|
39 if (CHAR_OR_CHAR_INTP (obj))
|
|
|
40 {
|
|
|
41 Emchar c;
|
|
|
42 CHECK_CHAR_COERCE_INT (obj);
|
|
|
43 c = XCHAR (obj);
|
|
|
44 c = (flag == CASE_DOWN) ? DOWNCASE (buf, c) : UPCASE (buf, c);
|
|
|
45 return make_char (c);
|
|
|
46 }
|
|
0
|
47
|
|
373
|
48 if (STRINGP (obj))
|
|
0
|
49 {
|
|
373
|
50 struct Lisp_Char_Table *syntax_table =
|
|
|
51 XCHAR_TABLE (buf->mirror_syntax_table);
|
|
|
52 Bufbyte *storage =
|
|
|
53 alloca_array (Bufbyte, XSTRING_LENGTH (obj) * MAX_EMCHAR_LEN);
|
|
|
54 Bufbyte *newp = storage;
|
|
|
55 Bufbyte *oldp = XSTRING_DATA (obj);
|
|
|
56 int wordp = 0, wordp_prev;
|
|
|
57
|
|
|
58 while (*oldp)
|
|
0
|
59 {
|
|
373
|
60 Emchar c = charptr_emchar (oldp);
|
|
|
61 switch (flag)
|
|
199
|
62 {
|
|
373
|
63 case CASE_UP:
|
|
|
64 c = UPCASE (buf, c);
|
|
|
65 break;
|
|
|
66 case CASE_DOWN:
|
|
|
67 c = DOWNCASE (buf, c);
|
|
|
68 break;
|
|
|
69 case CASE_CAPITALIZE:
|
|
|
70 case CASE_CAPITALIZE_UP:
|
|
|
71 wordp_prev = wordp;
|
|
|
72 wordp = WORD_SYNTAX_P (syntax_table, c);
|
|
|
73 if (!wordp) break;
|
|
|
74 if (wordp_prev)
|
|
|
75 {
|
|
|
76 if (flag == CASE_CAPITALIZE)
|
|
|
77 c = DOWNCASE (buf, c);
|
|
|
78 }
|
|
|
79 else
|
|
|
80 c = UPCASE (buf, c);
|
|
|
81 break;
|
|
199
|
82 }
|
|
373
|
83
|
|
|
84 newp += set_charptr_emchar (newp, c);
|
|
|
85 INC_CHARPTR (oldp);
|
|
0
|
86 }
|
|
373
|
87
|
|
|
88 return make_string (storage, newp - storage);
|
|
0
|
89 }
|
|
373
|
90
|
|
|
91 obj = wrong_type_argument (Qchar_or_string_p, obj);
|
|
|
92 goto retry;
|
|
0
|
93 }
|
|
|
94
|
|
20
|
95 DEFUN ("upcase", Fupcase, 1, 2, 0, /*
|
|
373
|
96 Convert OBJECT to upper case and return that.
|
|
|
97 OBJECT may be a character or string. The result has the same type.
|
|
|
98 OBJECT is not altered--the value is a copy.
|
|
0
|
99 See also `capitalize', `downcase' and `upcase-initials'.
|
|
|
100 Optional second arg BUFFER specifies which buffer's case tables to use,
|
|
|
101 and defaults to the current buffer.
|
|
20
|
102 */
|
|
373
|
103 (object, buffer))
|
|
0
|
104 {
|
|
373
|
105 return casify_object (CASE_UP, object, buffer);
|
|
0
|
106 }
|
|
|
107
|
|
20
|
108 DEFUN ("downcase", Fdowncase, 1, 2, 0, /*
|
|
373
|
109 Convert OBJECT to lower case and return that.
|
|
|
110 OBJECT may be a character or string. The result has the same type.
|
|
|
111 OBJECT is not altered--the value is a copy.
|
|
0
|
112 Optional second arg BUFFER specifies which buffer's case tables to use,
|
|
|
113 and defaults to the current buffer.
|
|
20
|
114 */
|
|
373
|
115 (object, buffer))
|
|
0
|
116 {
|
|
373
|
117 return casify_object (CASE_DOWN, object, buffer);
|
|
0
|
118 }
|
|
|
119
|
|
20
|
120 DEFUN ("capitalize", Fcapitalize, 1, 2, 0, /*
|
|
373
|
121 Convert OBJECT to capitalized form and return that.
|
|
0
|
122 This means that each word's first character is upper case
|
|
|
123 and the rest is lower case.
|
|
373
|
124 OBJECT may be a character or string. The result has the same type.
|
|
|
125 OBJECT is not altered--the value is a copy.
|
|
0
|
126 Optional second arg BUFFER specifies which buffer's case tables to use,
|
|
|
127 and defaults to the current buffer.
|
|
20
|
128 */
|
|
373
|
129 (object, buffer))
|
|
0
|
130 {
|
|
373
|
131 return casify_object (CASE_CAPITALIZE, object, buffer);
|
|
0
|
132 }
|
|
|
133
|
|
373
|
134 /* Like Fcapitalize but change only the initial characters. */
|
|
0
|
135
|
|
20
|
136 DEFUN ("upcase-initials", Fupcase_initials, 1, 2, 0, /*
|
|
373
|
137 Convert the initial of each word in OBJECT to upper case.
|
|
0
|
138 Do not change the other letters of each word.
|
|
373
|
139 OBJECT may be a character or string. The result has the same type.
|
|
|
140 OBJECT is not altered--the value is a copy.
|
|
0
|
141 Optional second arg BUFFER specifies which buffer's case tables to use,
|
|
|
142 and defaults to the current buffer.
|
|
20
|
143 */
|
|
373
|
144 (object, buffer))
|
|
0
|
145 {
|
|
373
|
146 return casify_object (CASE_CAPITALIZE_UP, object, buffer);
|
|
0
|
147 }
|
|
|
148
|
|
|
149 /* flag is CASE_UP, CASE_DOWN or CASE_CAPITALIZE or CASE_CAPITALIZE_UP.
|
|
|
150 b and e specify range of buffer to operate on. */
|
|
|
151
|
|
|
152 static void
|
|
183
|
153 casify_region_internal (enum case_action flag, Lisp_Object b, Lisp_Object e,
|
|
|
154 struct buffer *buf)
|
|
0
|
155 {
|
|
|
156 /* This function can GC */
|
|
|
157 REGISTER Bufpos i;
|
|
|
158 Bufpos start, end;
|
|
183
|
159 struct Lisp_Char_Table *syntax_table = XCHAR_TABLE (buf->mirror_syntax_table);
|
|
0
|
160 int mccount;
|
|
373
|
161 Emchar oldc, c;
|
|
|
162 int wordp = 0, wordp_prev;
|
|
0
|
163
|
|
|
164 if (EQ (b, e))
|
|
|
165 /* Not modifying because nothing marked */
|
|
|
166 return;
|
|
|
167
|
|
|
168 get_buffer_range_char (buf, b, e, &start, &end, 0);
|
|
|
169
|
|
|
170 mccount = begin_multiple_change (buf, start, end);
|
|
|
171 record_change (buf, start, end - start);
|
|
|
172
|
|
|
173 for (i = start; i < end; i++)
|
|
|
174 {
|
|
373
|
175 c = oldc = BUF_FETCH_CHAR (buf, i);
|
|
0
|
176
|
|
373
|
177 switch (flag)
|
|
183
|
178 {
|
|
373
|
179 case CASE_UP:
|
|
|
180 c = UPCASE (buf, oldc);
|
|
|
181 break;
|
|
|
182 case CASE_DOWN:
|
|
|
183 c = DOWNCASE (buf, oldc);
|
|
|
184 break;
|
|
|
185 case CASE_CAPITALIZE:
|
|
|
186 case CASE_CAPITALIZE_UP:
|
|
|
187 /* !!#### need to revalidate the start and end pointers in case
|
|
|
188 the buffer was changed */
|
|
|
189 wordp_prev = wordp;
|
|
|
190 wordp = WORD_SYNTAX_P (syntax_table, c);
|
|
|
191 if (!wordp) continue;
|
|
|
192 if (wordp_prev)
|
|
|
193 {
|
|
|
194 if (flag == CASE_CAPITALIZE)
|
|
|
195 c = DOWNCASE (buf, c);
|
|
|
196 }
|
|
|
197 else
|
|
|
198 c = UPCASE (buf, c);
|
|
|
199 break;
|
|
183
|
200 }
|
|
373
|
201
|
|
|
202 if (oldc == c) continue;
|
|
|
203 buffer_replace_char (buf, i, c, 1, (i == start));
|
|
|
204 BUF_MODIFF (buf)++;
|
|
0
|
205 }
|
|
373
|
206
|
|
0
|
207 end_multiple_change (buf, mccount);
|
|
|
208 }
|
|
|
209
|
|
185
|
210 static Lisp_Object
|
|
183
|
211 casify_region (enum case_action flag, Lisp_Object b, Lisp_Object e,
|
|
|
212 Lisp_Object buffer)
|
|
|
213 {
|
|
|
214 casify_region_internal (flag, b, e, decode_buffer (buffer, 1));
|
|
|
215 return Qnil;
|
|
|
216 }
|
|
|
217
|
|
20
|
218 DEFUN ("upcase-region", Fupcase_region, 2, 3, "r", /*
|
|
0
|
219 Convert the region to upper case. In programs, wants two arguments.
|
|
|
220 These arguments specify the starting and ending character numbers of
|
|
|
221 the region to operate on. When used as a command, the text between
|
|
|
222 point and the mark is operated on.
|
|
|
223 See also `capitalize-region'.
|
|
|
224 Optional third arg BUFFER defaults to the current buffer.
|
|
20
|
225 */
|
|
|
226 (b, e, buffer))
|
|
0
|
227 {
|
|
|
228 /* This function can GC */
|
|
183
|
229 return casify_region (CASE_UP, b, e, buffer);
|
|
0
|
230 }
|
|
|
231
|
|
20
|
232 DEFUN ("downcase-region", Fdowncase_region, 2, 3, "r", /*
|
|
0
|
233 Convert the region to lower case. In programs, wants two arguments.
|
|
|
234 These arguments specify the starting and ending character numbers of
|
|
|
235 the region to operate on. When used as a command, the text between
|
|
|
236 point and the mark is operated on.
|
|
|
237 Optional third arg BUFFER defaults to the current buffer.
|
|
20
|
238 */
|
|
|
239 (b, e, buffer))
|
|
0
|
240 {
|
|
|
241 /* This function can GC */
|
|
183
|
242 return casify_region (CASE_DOWN, b, e, buffer);
|
|
0
|
243 }
|
|
|
244
|
|
20
|
245 DEFUN ("capitalize-region", Fcapitalize_region, 2, 3, "r", /*
|
|
0
|
246 Convert the region to capitalized form.
|
|
|
247 Capitalized form means each word's first character is upper case
|
|
|
248 and the rest of it is lower case.
|
|
|
249 In programs, give two arguments, the starting and ending
|
|
|
250 character positions to operate on.
|
|
|
251 Optional third arg BUFFER defaults to the current buffer.
|
|
20
|
252 */
|
|
|
253 (b, e, buffer))
|
|
0
|
254 {
|
|
|
255 /* This function can GC */
|
|
183
|
256 return casify_region (CASE_CAPITALIZE, b, e, buffer);
|
|
0
|
257 }
|
|
|
258
|
|
|
259 /* Like Fcapitalize_region but change only the initials. */
|
|
|
260
|
|
20
|
261 DEFUN ("upcase-initials-region", Fupcase_initials_region, 2, 3, "r", /*
|
|
0
|
262 Upcase the initial of each word in the region.
|
|
|
263 Subsequent letters of each word are not changed.
|
|
|
264 In programs, give two arguments, the starting and ending
|
|
|
265 character positions to operate on.
|
|
|
266 Optional third arg BUFFER defaults to the current buffer.
|
|
20
|
267 */
|
|
|
268 (b, e, buffer))
|
|
0
|
269 {
|
|
183
|
270 return casify_region (CASE_CAPITALIZE_UP, b, e, buffer);
|
|
0
|
271 }
|
|
|
272
|
|
|
273
|
|
|
274 static Lisp_Object
|
|
183
|
275 casify_word (enum case_action flag, Lisp_Object arg, Lisp_Object buffer)
|
|
0
|
276 {
|
|
|
277 Bufpos farend;
|
|
183
|
278 struct buffer *buf = decode_buffer (buffer, 1);
|
|
0
|
279
|
|
|
280 CHECK_INT (arg);
|
|
183
|
281
|
|
0
|
282 farend = scan_words (buf, BUF_PT (buf), XINT (arg));
|
|
|
283 if (!farend)
|
|
|
284 farend = XINT (arg) > 0 ? BUF_ZV (buf) : BUF_BEGV (buf);
|
|
|
285
|
|
183
|
286 casify_region_internal (flag, make_int (BUF_PT (buf)), make_int (farend), buf);
|
|
|
287 BUF_SET_PT (buf, max (BUF_PT (buf), farend));
|
|
|
288 return Qnil;
|
|
0
|
289 }
|
|
|
290
|
|
20
|
291 DEFUN ("upcase-word", Fupcase_word, 1, 2, "p", /*
|
|
380
|
292 Convert following word (or N words) to upper case, moving over.
|
|
0
|
293 With negative argument, convert previous words but do not move.
|
|
|
294 See also `capitalize-word'.
|
|
|
295 Optional second arg BUFFER defaults to the current buffer.
|
|
20
|
296 */
|
|
380
|
297 (n, buffer))
|
|
0
|
298 {
|
|
|
299 /* This function can GC */
|
|
380
|
300 return casify_word (CASE_UP, n, buffer);
|
|
0
|
301 }
|
|
|
302
|
|
20
|
303 DEFUN ("downcase-word", Fdowncase_word, 1, 2, "p", /*
|
|
380
|
304 Convert following word (or N words) to lower case, moving over.
|
|
0
|
305 With negative argument, convert previous words but do not move.
|
|
|
306 Optional second arg BUFFER defaults to the current buffer.
|
|
20
|
307 */
|
|
380
|
308 (n, buffer))
|
|
0
|
309 {
|
|
|
310 /* This function can GC */
|
|
380
|
311 return casify_word (CASE_DOWN, n, buffer);
|
|
0
|
312 }
|
|
|
313
|
|
20
|
314 DEFUN ("capitalize-word", Fcapitalize_word, 1, 2, "p", /*
|
|
380
|
315 Capitalize the following word (or N words), moving over.
|
|
0
|
316 This gives the word(s) a first character in upper case
|
|
|
317 and the rest lower case.
|
|
|
318 With negative argument, capitalize previous words but do not move.
|
|
|
319 Optional second arg BUFFER defaults to the current buffer.
|
|
20
|
320 */
|
|
380
|
321 (n, buffer))
|
|
0
|
322 {
|
|
|
323 /* This function can GC */
|
|
380
|
324 return casify_word (CASE_CAPITALIZE, n, buffer);
|
|
0
|
325 }
|
|
|
326
|
|
|
327
|
|
|
328 void
|
|
|
329 syms_of_casefiddle (void)
|
|
|
330 {
|
|
20
|
331 DEFSUBR (Fupcase);
|
|
|
332 DEFSUBR (Fdowncase);
|
|
|
333 DEFSUBR (Fcapitalize);
|
|
|
334 DEFSUBR (Fupcase_initials);
|
|
|
335 DEFSUBR (Fupcase_region);
|
|
|
336 DEFSUBR (Fdowncase_region);
|
|
|
337 DEFSUBR (Fcapitalize_region);
|
|
|
338 DEFSUBR (Fupcase_initials_region);
|
|
|
339 DEFSUBR (Fupcase_word);
|
|
|
340 DEFSUBR (Fdowncase_word);
|
|
|
341 DEFSUBR (Fcapitalize_word);
|
|
0
|
342 }
|
